Wrinkle finish



Patented June 15, 1948 WRINKLE FINISH William Allshire Waldie, Oakwood,Ohio, assignor to New Wrinkle, Inc., Wilmington, DeL, a corporation ofDelaware No Drawing. Application December 6, 1944, Serial No. 586,959

14 Claimi- (Cl. 106-225) This invention relates to wrinkle finishcoating compositions and the method of producing the same. Moreparticularly this invention deals with compositions made fromhydrocarbon materials such as gilsonite and pitch.

. Those skilled in the art of wrinkle finishes heretofore were of theopinion that gilsonite and similar hydrocarbon substances were notusable in their formulas for wrinkle coating materials and hydrocarbonmaterials of that nature inhibited the development of a wrinkledstructure. This prejudice against the use of gilsonlte and pitch hasbeen overcome by the present invention according to which wrinklefinishes may be produced from gilsonite or pitch or a mixture of both.

It is thus an object of this invention to produce wrinkle finishes andwrinkle finish compositions from materials which are relativelyinexpensive and available from domestic sources.

It is another object of this invention to produce colored wrinklefinishes which do not require the addition of pigments.

Other and further objects and advantages will appear from the moredetailed description set forth below, it being understood, however, thatthis more detailed description is given by way of illustration only andnot by way of limitation since various changes in this disclosure may bemade by those skilled in the art without departing from the scope andspirit of this invention.

In the production of wrinkle coatings in accordance with the presentinvention, hydrocarbon materials are used, such as gllsonite or pitch,together with the usual oil, solvent and thinner. If desired, thehydrocarbon substances may be employed in admixture with resins;however, hydrocarbon materials alone will give entirely satisfactoryresults.

Apart from the simplicity of composition the wrinkle coatings obtainedby the process of this invention have the advantage of "exhibiting acolor ranging from golden yellow to a very dark brown and black withoutany addition of pigments. The shade and intensity of color can becontrolled by selecting the right hydrocarbon materials or mixing themin the proper proportions, candle pitch yielding the lightest shade,namely a delicate gold tone, gilsonite the darkest, namely a very dark,blackish brown and stearine pitch producing a coating the hue of whichis in between these two aforementioned shades.

Any resin usable for the production of varnishes may be used for theprocess of my invention, it it is oil-soluble. Phenol aldehyde resins,such as 2 resins sold under the trade names Krumbhaar #505 by KrumbhaarChemicals, Inc., Kearney, New J ersey,.Amberol F-ll a rosin modifiedphenol formaldehyde resin sold by Reslnous Products Co., Philadelphia,and Beckacite 3000 also a phenol aldehyde resin sold by ReichholdChemicals, Inc.,

' Detroit, give very satisfactory results. However,

as mentioned, every other oil-soluble resin may be used with equalsatisfaction. Also natural resins which have been made oil-soluble byrunning" are suitable for the method and the product,

of the present invention.

The oils applicable for the invention are drying as well as semi-dryingand non-drying oils. linseed oil, in its raw state, borated, blown orbodied, tung oil, raw or blown, castor oil raw or dehydrated, are just afew examples of the great number of oils which, taken singly or incombination, have proven applicable and advantageous for the process andproduct of this invention.

Gilsonite varnishes have a tendency to become colloidal. Thisdisadvantage, however. may be easily overcome by using relatively highcooking temperatures in the production of the wrinkle finishescontaining gilsonite. Cooking temperatures of from 550 to 650 F. havebeen found to produce the best results. v

Another factor that has a bearing on the consistency of the finish isthe solvent. It has been found that highly powerful solvents,particularly coal tar materials, such as toluol, xylol, alone or inadmixture with petroleum solvents such as light gravity petroleumnaphtha, counteract to -a certain degree the tendency of the finishes tobecom colloidal.

Of the driers utilized with the wrinkle compositions of my invention,cobalt driers have proven most satisfactory. A manganese drier, however,can also be used. The driers sold under the trade names Nuodex Cobalt,6% which is a cobalt naphthenate with a cobalt content of 6% and NuolateCobalt 4%, which is a cobalt lino-resinate havin a cobalt content of 4%,have given excellent results.

Any process of finishing with the varnishes of my invention may beemployed. For example, the composition may be applied to the surface ofan article by spraying after which the article may be baked.

The temperatures and periods of time of baking are not critical for thevarnishes of my invention. However, optimum results are obtained bybaking for one hour at 300 F., for one and one-half hours at 250 F. orfor two hours at 200 F.

The following examples serve to illustrate some varnishes of myinvention made irom hydrocarbon materials, namely gilsonite or pitch ora mixture of both.

The method used in preparing the varnish of Example I is the following:The gilsonite and Beckacite #3000 are melted in about gals. of the rawtung oil and heated to approximately 600 F'. and held at thistemperature until a drop of the solution flows freely from the stirringrod. Heating is then discontinued and the batch allowed to cool down toabout 500 F. whereupon the remaining 2 gallons of the raw tung'oil areadded. After the varnish base thus formed has cooled to about 400 F., 2gallons of xylol are added and upon still further cooling to 300 F.,

12 allons of light ravity petroleum naphtha A, g g Nuolate Cobalt, 4%ga15 and one quarter gallon of Nuolate Cobalt 4% are added. When thisvarnish was sprayed and baked for 1% hours at 220 R, a hard film of goodwrinkle texture of blackish brown color was obtained.

Example Ill The same ingredients, proportions and steps were used as inExample I with the exception that instead of 17 lbs. Beckacite plus 33lbs. gilsonite, 50 pounds of gilsonite were used. Again a hard film offine and regular wrinkle texture was obtained; its color was practicallyblack.

Example III In this instance the gilsonite of Example 11 was replaced by50 pounds of candle pitch. The film obtained again showed a fine anduniform wrinkle pattern and was hard; its color was that of a delicateyellow gold.

Example IV This is similar to the preceding examples with thedistinction that pounds of gilsonite and 25 pounds or candle pitch wereused. The film obtained was finely wrinkled and hard and of The varnishwas prepared in accordance with the directions given in Example I.Krumbhaar resin #505 is a modified phenol aldehyde resin. The boratedlinseed oil was produced from 16 gals. of heat bodied linseed oil(varnish grade), viscosity Z-4 as determined by the Gardner-Holdtstandards, 2 gallons of raw linseed oil (varnish grade) and 6 pounds ofmanganese borate. On baking for two hours at 200 F. the film obtainedwith the varnish of Example V gave a brown wrinkle film with a finetexture.

Example VI Amberol F-77 lbs- 17 Stearine pitch lbs", 33 Raw tung oilgals-.. 7.5 Xylol gals-.. 2.5 Light gravity petroleum naphtha--- gals..-12.5 Nuolate Cobalt, 4% gals 0.25

The procedure was the same as in the preceding examples. The resultingwrinkle texture was ood and'the film hard and of dark brown color.

Example VII To eleven parts by volume oi the mixture of Example VI, onepart by volume of raw tung oil was added. The film obtained again showeda line wrinkle texture but was slightly harder th that of Example VI.

Example VIII Beckacite #3000 lbs" 17 Zeco #311 pitch lbs... 33 Raw tungoil gals" 7V Xylol gals 2% Light gravity petroleum naphtha--- gals-..12%

Zeco #311 pitch is a hard candle pitch made by G. S. Ziegler 8; 00., NewYork. The varnish was.

cooked according to the details given in Example I, sprayed and baked ata temperature of approximately 290 F. for one hour. It yielded a hard.golden-colored film with a good wrinkle texture.

By the method of this invention colored varnishes are obtained withoutthe necessity 01 a separate step for incorporating a pigment. Al-

though the films obtained by my process are inherently colored, furtheradditions of pigments may be made in order to change the color to adifierent shade. Thus. for example, by composi0 ing the finish from therelatively light candle pitch and adding specific pigments, films oi?red, green or other hues may be obtained.

The coating compositions of my invention may be applied to all mnds oimate such as metal, wood, cloth, rubber.

Having thus set forth my invention I claim:

1. The process for producing a e finish coating composition whichcomprises melting 50 pounds of hydrocarbon material of the groupconsisting oi gilsonite and candle pitch in untreated drying oil,heating the mixture to a temperature or from 550 to 650 E, cooling toapproximately 500 F. and adding an additional quantity of said dryingoil, so that the total amount thereof is between 7.5 and 10 gallons;cooling to 400 1". and adding part of the thinner. further cooling to300 F. and adding the remaining part of the thinner and the drier.

2. The process'ior producing a e finish coating composition whichcomprises melting approximately 50 pounds of hydrocarbon material of thegroup consisting of gilsonite and candle pitch in five gallons ofuntreated drying oil, heating the mixture to a temperature of from 550to 650 F., cooling to approximately 500 F., adding more of said dryingoil so as to bring the total oil content to 7.5 to 10 gallons, coolingto approximately 400 F., adding substantially 2.5 gallons of thinner,further cooling to 300 F. and adding from 10-20 gallons of thinner and adrier.

3. The process for producing a wrinkle finish coating composition whichcomprises melting 60 pounds of hydrocarbon containing from 26-50 poundsof hydrocarbon material of the group consisting of gilsonite and candlepitch and 24-0 pounds of oil-soluble resin in five gallons of untreateddrying oil, heating the mixture to a temperature or from 550 to 650 F.,cooling to approximately 500 F., adding more of said drying oil so as tobring the total oil content to 7.5 to gallons, cooling to approximately400 F., adding substantially 2.5 gallons oi thinner, then furthercooling to 300 F. and adding from ten to twenty gallons oi thinner and adrier.

4. A wrinkle coating composition having the properties of a productobtained according to the process of claim 1.

5. A wrinkle coating composition having the properties of a productobtained according to the process of claim 2.

8. A wrinkle coating composition having the properties of a productobtained according to the process or claim 3.

7. A wrinkle finish composition comprising the heat reaction product of50 pounds of a solid base material with 7.5 to 10 gallons of untreateddrying oil at a temperature of from 500 to 650 F.. metallic drier andthinner, 52 to 100% of said solid base material consisting of ahydrocarbon selected from the group consisting of untreated gilsoniteand untreated candle pitch and the remainder of oil-soluble resin.

8. A wrinkle finish composition comprising the heat reaction product of50 pounds of a solid base material with 7.5 to 10 gallons of untreateddrying oil at a temperature of from 500 to 650 F., metallic drier andthinner, 52 to 100% of said solid base material consisting of untreatedgilsonite and the remainder of oil-soluble resin.

9. A wrinkle finish composition comprising the heat reaction product of50 pounds of a solid base material with 7.5 to 10 gallons of untreateddrying oil at a temperature or from 500 to 850 F., metallic drier andthinner, 52 to 100% or said solid base material consisting of untreatedcandle pitch and the remainder of oil-soluble resin.

10. A wrinkle finish composition comprising the heat reaction product of50 pounds 01 a solid base material with 7.5 to 10 gallons of untreateddryin oil at a temperature or from 500 to 850 It. metallic drier andthinner, 52 to 100% of said solid base material consisting of a mixtureoi untreated gilsonite and untreated candle pitch and the remainder ofoil-soluble resin.

11. A wrinkle finish composition comprising the heat reaction product of50 pounds or a solid base material with 7.5 to 10 gallons of untreateddrying oil at a temperature of from 500 to 850' E, metallic drier and amixture of xyiol and toluol, 52 to 100% of said solid base materialconsisting 01' a hydrocarbon selected from the group consisting ofuntreated gilsonite and untreated candle pitch and the remainder oioil-soluble resin.

12. A wrinkle finish composition comprising the heat reaction product 01pounds of a solid base material with 7.5 to 10 gallonsof untreateddrying oil at a temperature of from 500 to 850 F., metallic drier and amixture of xylol and light petroleum naphtha, 52 to of said solid basematerial consisting of a hydrocarbon selected from the group consistingof untreated gilsonite and untreated candle pitch and the remainder ofoil-soluble resin.

13. A wrinkle finish composition comprising the heat reaction product of50 pounds of a solid base material with 7.5 to 10 gallons of untreateddrying oil at a temperature of from 500 to 650 F., metallic drier,thinner, and pigment, 52 to 100% of said solid base material consistingof a hydrocarbon selected Irom the group consisting of untreatedgilsonite and untreated candle pitch and the remainder of oil-solubleresin.

14. A wrinkle finish composition comprising the heat reaction product ofapproximately 50 pounds of a solid base material with 7.5 to 10 gallonsoi untreated drying oil at a temperature of from 500 to 850 1".,metallic drier and thinner, 52 to 100% of said solid base materialconsisting of a hydrocarbon selected from the group consisting ofuntreated gilsonite and untreated candle pitch and the remainder ofoil-soluble resin.

WILLIAM AIL-SHIRE WALDIE.

REFERENCES CITED The following references are of record in the OTHERREFERENCES Asphalts and Allied Substances, Abraham, vol. 1, fifthedition, pages 251, 252, 421, and 435.

